摘要：I will talk about how to access best practice when developing a c++ project here. I myself is not an expert in it so this is gonna be a record rather 阅读全文

摘要：例子来自libc++中unordered_map的实现 unordered_map中__hash_table子成员： 查看其中__allocator_type的定义，相关的类如下 struct __rebind_alloc_helper { using type _LIBCPP_NODEBUG = 阅读全文